mirror/btstack
1
0
Fork 0
mirror of https://github.com/bluekitchen/btstack.git synced 2025-03-29 04:20:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

raspi: add raspberry pi hardware overview

Browse Source
This commit is contained in:
Matthias Ringwald 2019-01-22 14:30:42 +01:00
parent c41e99220e
commit 84b427c355
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
port/raspi/README.md
View File

@ -95,6 +95,18 @@ Copy one of the examples to the Rasperry Pi and just run them. BTstack will powe
BTstack counter 0001
BTstack up and running at B8:27:EB:27:AF:56
## Bluetooth Hardware Overview
Model | Bluetooth Controller | UART Type | UART Flowcontrol | BT_REG_EN | HCI Transport | Baudrate
-------------------------|---------------------------------------------------------|-----------|------------------|-------------|---------------|----------
Older | None | | | | |
Pi 3 Model A, Model B | [CYW43438](http://www.cypress.com/file/298076/download) | Hardware | No | 128 | H5 | 921600
Pi 3 Model A+, Model B + | [CYW43455](http://www.cypress.com/file/358916/download) | Hardware | Yes | 129 (See 1) | H4 | 921600 (See 2)
Pi Zero W | [CYW43438](http://www.cypress.com/file/298076/download) | Hardware | Yes | 45 | H4 | 921600
1. Model A+/B+ have BT_REG_EN AND WL_REG_EN on the same (virtual) GPIO 129. A Bluetooth Controller power cycle also shuts down Wifi (temporarily). BTstack avoids a power cycle on A+/B+.
2. Model A+/B+ support 3 mbps baudrate. Not enabled/activated yet.
## TODO
- Raspberry Pi Zero W: Check if higher baud rate can be used, 3 mbps does not work.
- Raspberry + RedBear IoT pHAT (AP6212A = BCM4343) port: IoT pHAT need to get detected and the UART configured appropriately.